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Charles and Dian...The Prince and Princess of Wales were married on July 29, 1981 as watched by millions around the world. Here they are seen on the balcony of Buckingham Palace on their wedding day. Their son, Prince William, will be marrying Kate Middleton in a similar public ceremony. (Photo by Terry Fincher/Princess Diana Archive/Getty Images)

Eve of the Weddi...A firework display is shown over London on the eve of Charles and Diana's wedding. (Photo by Terry Fincher/Getty Images)

Excited RoyalistA man outside a house decorated with flags and photos in celebration of the wedding of Charles, Prince of Wales, and Lady Diana Spencer. (Photo by Terry Fincher/Getty Images)

Waiting for the ...Spectators waiting for the wedding procession of Charles, Prince of Wales, and Lady Diana Spencer, London, 29th July 1981. (Photo by Terry Fincher/Getty Images)

Dressed for the ...Women wearing patriotic costumes wait in London for the royal newlyweds Charles and Diana, 29th July 1981. (Photo by Terry Fincher/Getty Images)

Parents ArrivePrince Philip, Duke of Edinburgh, and Frances Shand Kydd, the father of the groom and the mother of the bride. (Photo by Princess Diana Archive/Getty Images)

Officiant Arrive...Robert Runcie, The Archbishop of Canterbury, arriving at St Paul's Cathedral where he will be conducting the marriage ceremony. (Photo by Fox Photos/Hulton Archive/Getty Images)

Princess Diana A...Lady Diana Spencer travels by coach to St Paul's Cathedral for her wedding to the Prince of Wales, 29th July 1981. She wears a wedding dress by David and Elizabeth Emmanuel and the Spencer family tiara. (Photo by Princess Diana Archive/Getty Images)

Here Comes the B...The bride arrives on the arm of her father, John Spencer, 8th Earl Spencer. (Photo by Serge Lemoine/Hulton Archive/Getty Images)

Giving Daughter ...John Spencer, 8th Earl Spencer, gives his daughter away. In blue is Diana's mother, Frances Shand Kydd and next to her is Diana's brother Charles. Prince Andrew and Prince Edward are behind their brother Charles. Robert Runcie, the Archbishop of Canterbury, conducts the ceremony. (Photo by Fox Photos/Hulton Archive/Getty Images)

Take a RestThe wedding of Prince Charles and Lady Diana Spencer at St Paul's Cathedral in London. Prince Charles says something to the Princess as the couple take a seat during the ceremony. (Photo by Keystone/Hulton Archive/Getty Images)

Bridesmaids Rest...Bridesmaids at the wedding as well. (Photo by Serge Lemoine/Hulton Archive/Getty Images)

The AttirePrince Charles and Princess Diana in their wedding day attire. (Photo by Keystone/Hulton Archive/Getty Images)

Royal GroupA family group In the throne room of Buckingham Palace after the wedding of Charles, Prince of Wales, and Princess Diana. Back row, left to right : Edward Vancutsen, Lord Nicholas Windsor, Sarah Jane Gaselee, Prince Edward, Prince Charles, Princess Diana, Prince Andrew and Lady Sarah Armstrong-Jones. Front row, left to right : Catherine Cameron, India Hicks and Clementine Hambro. (Photo by Hulton Archive/Getty Images)

Princess Of Wale...Formal portrait of Lady Diana Spencer in her wedding dress designed by David and Elizabeth Emanuel. (Photo by Fox Photos/Getty Images)

The Married Coup...Charles, Prince of Wales and Diana, Princess of Wales in the throne room of Buckingham Palace, after their wedding at St Paul's Cathedral, London. (Photo by Keystone/Getty Images)

Leaving the Chur...The wedding of Charles, Prince of Wales, and Lady Diana Spencer in St Paul's Cathedral. The bride and groom leave the cathedral together after the ceremony. (Photo by Fox Photos/Hulton Archive/Getty Images)

Marching Band Aw...A military marching band on The Mall in London, during the wedding of Charles, Prince of Wales, and Lady Diana Spencer. (Photo by Fox Photos/Hulton Archive/Getty Images)

Crowd WaitsMounted police contain the huge crowd gathered in The Mall on the day of Prince Charles and Princess Diana's wedding. (Photo by Terry Fincher/Getty Images)

Street PartyA street party for children to celebrate the royal wedding of Prince Charles and Lady Diana Spencer, Oxford Street. (Photo by Fox Photos/Hulton Archive/Getty Images)

Leaving the Chur...The Prince and Princess of Wales leave St Paul's Cathedral after their wedding. She wears a wedding dress by David and Elizabeth Emmanuel and the Spencer family tiara. (Photo by Jayne Fincher/Princess Diana Archive/Getty Images)

Return to Buckin...The Prince and Princess of Wales return to Buckingham Palace by carriage after their wedding. (Photo by Princess Diana Archive/Getty Images)

Congratulations ...Photographers on the royal wedding procession route waiting for newlyweds Charles and Diana, banners and flags adorn the bridge and building. (Photo by Fox Photos/Hulton Archive/Getty Images)

Parents LeaveThe Queen and Earl Spencer travel from St Paul's Cathedral by carriage after the wedding of their respective son and daughter, now the Prince and Princess of Wales. (Photo by Princess Diana Archive/Getty Images)

CelebrationsTwo girls wearing hats during the celebrations for the wedding of Prince Charles and Lady Diana Spencer. (Photo by Keystone/Hulton Archive/Getty Images)

Royal FamilyNewlyweds Princess Diana and Prince Charles with the Queen and other members of the Royal Family on the balcony at Buckingham Palace. (Photo by Terry Fincher/Getty Images)

Tired RevellersTwo revellers look tired as they rest on the pavement during celebrations on the day of Prince Charles' wedding to Lady Diana Spencer. (Photo by Fox Photos/Hulton Archive/Getty Images)

The Newlywed Wal...Newlyweds Prince Charles and Princess Diana, Princess of Wales on the balcony at Buckingham Palace to greet the crowds. Their page boys are Prince Charles' godsons Nicholas Windsor and Edward van Cutsem and the bridesmaid is Clementine Hambro. (Photo by Fox Photos/Hulton Archive/Getty Images)

Royal Wedding Cr...Crowds in The Mall, London, on the wedding day of Prince Charles and Lady Diana. (Photo by Keystone/Hulton Archive/Getty Images)

Sealed With A Ki...Prince Charles, the Prince of Wales kissing his wife, Princess Diana, on the balcony of Buckingham Palace in London after their marriage. (Photo by Keystone/Getty Images)

Royal Wedding Ca...Chief Petty Officer Cook Dave Avery, senior instructor at the Royal Navy's Cookery School, HMS Pembroke, is seen putting the finishing touches to the five tier royal wedding cake for Prince Charles and Princess Diana. (Photo by Princess Diana Archive/Getty Images)

Royal HoneymoonPrince Charles and Diana, Princess of Wales leave Buckingham Palace for their honeymoon after their wedding. (Photo by Serge Lemoine/Hulton Archive/Getty Images)

On Their WayNewlyweds, Charles, Prince of Wales and Princess Diana boarding the royal train at Waterloo as they set off on their honeymoon. (Photo by Hulton Archive/Getty Images)